Siphon (biology)
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The term siphon is used for a number of biological structures, either because flowing liquids are involved or because the object is shaped like a siphon. In these structures, the physical phenomenon known as the siphon effect is not present.
[edit] The siphon as an organ in animals
- Many aquatic mollusks have an organ called a siphon or hyponome through which water is sucked in and out, either for filter-feeding or to provide oxygen.
- The larvae of several kinds of insects, including mosquitoes, tabanid flies, and Belostomatidae) live in the water and breathe through a tubular organ called a siphon (which functions as a snorkel).
- Some adult insects which spend considerable time underwater, such as the water scorpion, have an abdominal breathing tube that is also called a siphon.
[edit] The term "siphon" in human anatomy
- A portion of the human internal carotid artery running through the cavernous sinus is called the carotid siphon because of its shape.
[edit] Other contexts
- A siphon gourd has a long curved neck, shaped like a siphon.
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